. >> it's interesting to me to look at even the names of these young men, tamerlan, probably tamerlan, a great islamic warrior who had many campaigns that resulted in the deaths of millions of people, and also the young brother, dzhokhar, named after the similar name, anyhow, to the first president of the czech republic, islamic republic, that was formed there. so i don't know if there's anything about identity when you're given a name like that as a youth, what kind of, what does that do to your mindset and your self-image and identity, what's expected of you. interesting to hear the profilers talk about that. >> it is very interesting, this 19-year-old who we believe is the suspect now cornered, authorities believe with some level of confidence that is who they have cornered in this small boat in the backyard. we know he came to the united states at the age of 8 years old back in 2002, i believe it was. his brother, who died last night, died at the age of 26, came four years later, i believe at the age of 20, did not himself become a u.s. citizen but did get a green card. >> but you